Staying logged in

dean7 · February 18, 2013

Hey all, I stopped coding for some time but I've only just decided to restart coding but already hit into something I can't get around.

I've got my Login script for which you will login to on my game. Once logged in you can play untill you logout although, I can login fine but as soon as I get to the first page on my site it sends me back to the login page as it thinks I'm not logged in.

Here is my Login Script:

Index.php

<?php
session_start();
include_once ("TheDbs/ConfigerationFile.php");
if (isset($_GET['logout']) && strip_tags($_GET['logout']) == "yes") {
session_destroy();
}elseif (isset($_SESSION['username'])){
header("Location: GameIndex.php");
exit();
}
if (strip_tags($_POST['Submit']) && strip_tags($_POST['username']) && strip_tags($_POST['password'])){
$username = strip_tags(mysql_real_escape_string($_POST['username']));
$password = strip_tags(mysql_real_escape_string($_POST['password']));
$select = mysql_query("SELECT * FROM $TableUsersInfo WHERE online > '$timenow' ORDER by rank desc") or trigger_error("Query Error, Line 16 . " . mysql_error());
$num = mysql_num_rows($select);
$date = date('D, jS M, Y, g:ia');
$ip = getenv("REMOTE_ADDR") ;
if((!$username) || (!$password)){
$message="<br /><table width='30%' align='center' class='TableStyle' border='1' cellpadding='0' cellspacing='0'>
<tr>
<td class='error_header' align='center'>Error</td>
</tr>
<tr>
<td align='center'><strong>Please fill in all fields.</strong></td>
</tr>
</table>";
}
///check INFO
$sql = mysql_query("SELECT * FROM $TableUsers WHERE username='".mysql_real_escape_string($username)."' AND password='".mysql_real_escape_string($password)."' LIMIT 1") or trigger_error("Query Fail, Line 26. " . mysql_error());

$login_check = mysql_num_rows($sql);
$infomation = mysql_real_escape_string(mysql_fetch_object($sql));
if ($login_check == "0"){
$message="<br /><table width='30%' class='TableStyle' align='center' cellpadding='0' cellspacing='0' border='1'>
<tr>
<td class='error_header' align='center'>Error</td>
</tr>
<tr>
<td align='center'><strong>Your Username or Password is incorrect!</strong></td>
</tr>
<table>";
}elseif ($login_check != "0"){

if ($login_check > "0"){
if ($infomation->status == "Banned"){
$encoded=md5(strtolower($username));
header("Location: BannedUser.php?$encoded=user$banned");
exit();
}

 session_register('username');
 $_SESSION['username'] = $information->username;



	 $timestamp = time()+20;
	 $get = mysql_query("SELECT * FROM $TblUsers WHERE username='".mysql_real_escape_string($username)."' LIMIT 1");
	 $got = mysql_fetch_object($get);

mysql_query("UPDATE $TableUsersInfo SET online='".mysql_real_escape_string($timestamp)."' WHERE username='".mysql_real_escape_string($username)."' LIMIT 1");
mysql_query("UPDATE $TableUsers SET login_ip='".mysql_real_escape_string($ip)."' WHERE username='".mysql_real_escape_string($username)."' LIMIT 1");	
mysql_query("UPDATE $TableUsers SET lastlogin='".mysql_real_escape_string($date)."' WHERE username='".mysql_real_escape_string($username)."' LIMIT 1");
 header("Location: GameIndex.php");


} else {
$message= "<br /><table width='30%' class='TableStyle' align='center' cellpadding='0' cellspacing='0' border='1'>
<tr>
<td class='error_header' align='center'>Error</td>
</tr>
<tr>
<td align='center'><strong>Error While Trying to Login!</strong></td>
</tr>
<table>";

}}}
?>
<html>
<head>
<title>Login</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css">
.ThisBody {
background-color: #737373;
margin-left: 0px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
font-family: Verdana;
font-size: 11px;
font-style: normal;
color: #FFFFFF;
}
</style>
<link rel='stylesheet' href='includes/style.css' type='text/css'>
</head>
<form action='' method='post'>
<br />
<body class='ThisBody' leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<?php echo ($message); ?>
<table id="Table_01" align='center' width="530" height="292" border="0" cellpadding="0" cellspacing="0">
<tr>
<td colspan="7" background="images/LoginScreen/Indexright.png" height='220' align='center'><br /><br />
<img src='images/LoginScreen/Username.png'><br /><input name="username" class='TextInput' type="text" maxlength="15" id="username"><br />
	 <img src='images/LoginScreen/Password.png'><br /><input name="password" class='TextInput' type="password" maxlength="30" id="password"><br /><br />
	 <input type="submit" class='Button' name="Submit" value="Login SC">
	 </td>
</tr>
</table>
</form>
<br />
<table align="center" cellpaddig='0' cellspacing='0' border='1' width="35%" class='TableStyle'>
<tr>
<td class='UnderTable' align='center'>Help:</td>
<tr>
<td colspan="2" width="100%" align="center"><a href="Register.php">Register</a> - <a href="TOS.php">Terms Of Service</a> - <a href="LostPassword.php">Lost Password</a></td>
</tr>
</table>

And simply on my gameindex page its a simple piece of code for the moment:

GameIndex.php

<?php
session_start();
include ("TheDbs/ConfigerationFile.php");
include ("TheDbs/GameFunctions.php");
logincheck();
$Username = $_SESSION['username'];
?>
Game Index

And the last thing is the function logincheck() is another reasonably simple code:

function logincheck(){

if (empty($_SESSION['username'])){
echo "
<SCRIPT LANGUAGE='Javascript'>
window.location='Index.php';
</script>
";
exit();
}}

Thanks for any help! =D

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